
| APR | MAY | JUN | JUL | AUG | SEP | ||||||||||||||||||||||
| Week no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
| Site | Ind | ||||||||||||||||||||||||||
| Large Skipper | NI | . | . | . | . | . | . | . | . | 4 | 1 | 4 | 10 | 5 | 3 | 1 | . | . | . | . | . | ||||||
| Dingy Skipper | NI | . | . | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 7 | . | 2 | 5 | 4 | 1 | . | 1 | . | . | . | . | . | . | . | . | . | 1 | 1 | . | . | ||||||
| Large White | NI | . | . | . | . | 1 | 1 | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Small White | NI | . | . | . | . | . | 1 | 1 | . | . | . | . | . | . | 1 | 1 | . | 2 | . | . | . | ||||||
| Green-veined White | NI | . | . | 1 | 5 | 14 | 11 | 15 | 6 | . | . | 1 | . | . | . | . | . | . | . | . | . | ||||||
| Orange Tip | NI | . | . | . | 4 | 3 | 5 | 6 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Green Hairstreak | . | . | . | 3 | 6 | 7 | 6 | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Northern Brown Argus | NI | . | . | . | . | . | . | . | . | 1 | . | . | 3 | 6 | 1 | 1 | . | . | . | . | . | ||||||
| Common Blue | NI | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | 5 | 11 | 3 | . | 2 | . | . | ||||||
| Duke of Burgundy Fritillary | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 8 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 2 | . | . | 1 | . | ||||||
| Small Tortoiseshell | 68 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | ||||||
| Peacock | NI | 4 | 10 | 11 | 24 | 10 | 5 | 2 | . | . | . | . | . | . | . | . | 7 | 3 | 1 | 2 | . | ||||||
| Comma | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | ||||||
| Small Pearl-bordered Fritillary | NI | . | . | . | . | . | . | . | . | 18 | 27 | 22 | 7 | 14 | . | 1 | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | NI | . | . | . | . | . | 6 | 5 | 8 | 9 | . | 3 | . | . | . | . | . | . | . | . | . | ||||||
| High Brown Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | 1 | . | . | . | . | ||||||
| Dark Green Fritillary | NI | . | . | . | . | . | . | . | . | . | . | 2 | 8 | 20 | 10 | 1 | . | . | . | . | . | ||||||
| Silver-washed Fritillary | NI | . | . | . | . | . | . | . | . | . | . | . | 4 | 4 | 3 | 11 | 2 | 1 | . | . | . | ||||||
| Speckled Wood | 34 | . | . | 2 | 1 | 4 | 5 | 3 | . | 3 | 8 | 16 | 16 | 13 | 12 | 3 | 9 | 7 | 8 | 10 | 21 | ||||||
| Meadow Brown | NI | . | . | . | . | . | . | . | . | . | . | 2 | 6 | 15 | 7 | 19 | 8 | 3 | 2 | . | . | ||||||
| Small Heath | NI | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||||